WPC FORECAST OPERATIONS BRANCH
MONTHLY RECORD THREAT SCORES
24-HOUR QPF

(NUMBERS IN BOLD ARE ALL TIME RECORDS FOR THAT CATEGORY)

Statistics updated July 27, 2022




Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Day 1 0.50 0.606 0.628 0.541 0.552 0.487 0.391 0.353 0.338 0.459 0.565 0.596 0.655 0.474
2019 2016 2011 2019 2019 2021 2021 2017 2018 2019 2015 2020 2019
1.00 0.542 0.557 0.525 0.467 0.387 0.290 0.251 0.294 0.489 0.531 0.550 0.512 0.366
2013 2020 2012 2018 2019 2021 2021 2017 2008 2015 2015 2014 2015,18
2.00 0.446 0.437 0.433 0.430 0.276 0.201 0.208 0.434 0.491 0.457 0.478 0.402 0.295
2009 2020 2018 2020 2010 2001,17 2005 2011 2008 2015 2012 2018 2012
3.00 0.352 0.464 0.390 0.299 0.200 0.244 0.227 0.566 0.550 0.525 0.442 0.405 0.294
2009 2015 2008 2020 2019 2022 2008 2011 2017 2010 2012 2015 2017
Update 0.50 0.576 0.585 0.540 0.521 0.433 0.356 0.328 0.318 0.431 0.532 0.571 0.620 0.426
2022 2016 2021 2018 2019 2021 2021 2017 2017 2019 2015 2020 2019
1.00 0.485 0.505 0.460 0.477 0.314 0.239 0.228 0.269 0.451 0.522 0.513 0.471 0.333
2019 2020 2012 2018 2019 2021 2021 2017 2008 2015 2015 2018 2018
2.00 0.512 0.361 0.409 0.402 0.262 0.196 0.213 0.418 0.410 0.427 0.458 0.469 0.254
2009 2020 2018 2020 2010 2012 2005 2011 2004 2015 2012 2017 2017
Day 2 0.50 0.575 0.568 0.508 0.482 0.407 0.309 0.293 0.289 0.420 0.505 0.530 0.594 0.398
2022 2022 2021,22 2018 2017 2021 2021 2008 2017 2019 2011 2020 2019
1.00 0.467 0.488 0.446 0.438 0.275 0.208 0.183 0.241 0.408 0.468 0.497 0.451 0.303
2022 2020 2012 2018 2010 2021 2021 2008 2008 2015 2015 2013,14 2018
Day 3 0.50 0.498 0.544 0.440 0.446 0.376 0.262 0.239 0.255 0.371 0.456 0.489 0.547 0.354
2021 2022 2014 2018 2017 2017 2021 2018 2017 2019 2015 2018 2019
1.00 0.418 0.435 0.378 0.397 0.248 0.142 0.156 0.202 0.347 0.397 0.443 0.420 0.257
2009 2020 2012 2018 2019 2013 2021 2008 2008 2015 2015 2010 2015


Alltime Records

Day 1 0.50 0.655 (Dec 2020)
1.00 0.557 (Feb 2020)
2.00 0.491 (Sep 2008)
3.00 0.566 (Aug 2011)
Update 0.50 0.620 (Dec 2020)
1.00 0.513 (Oct 2015)
2.00 0.512 (Jan 2009)
Day 2 0.50 0.594 (Dec 2020)
1.00 0.497 (Nov 2015)
Day 3 0.50 0.547 (Dec 2018)
1.00 0.443 (Nov 2015)